Theortical and methodological basics of Resources Description and Access (RDA)
Hisham Fathy Makki
Vice director of IT, Library of Congress Cairo
This paper discusses the factors that lead to change cataloging rules from AACR2 to RDA, and states the difficulties that faced catalogs and catalogers which lead to the change to new cataloging rules entitled Resource Description and Access (RDA), and presents how MARC 21 has many disadvantages and not suitable to be a model in relational data bases structure. The paper discusses also Entity-Relationships Modeling (E-R Modeling) which FRBR based on.